We incorporate both finite-element as well as Cartesian grid domains into our modeling efforts on a project-by-project basis.  Our hydrodynamic models include ADCIRC, CMS-M2D, STWAVE, RMA2, and RMA4.  Typically, we will utilize a combination of these models to provide a comprehensive analysis of current dynamics, wave propagation, contaminant dispersion and sediment transport.  For many projects, regional circulation models are constructed initially, and the hydrodynamic solutions from these models are used as boundary conditions for site-specific investigations.

Hydrodynamic modeling is a tool that can be invaluable in the assessment of potential impacts of new structures or altered coastline morphology on the surrounding environment.  OET has used computer modeling to evaluate the effects of pier/jetty construction, marina development, cutting and dredging, and flushing/contaminant dispersion issues.  Models are typically calibrated with field data from Acoustic Doppler Current Profilers (ADCPs), water level loggers, and/or tidal constituents.   Detailed bathymetric data is essential for an accurate hydrodynamic simulation.  OET collects our own bathymetric data sets during field investigations to incorporate into our models.  These data sets are often complimented by lower resolution offshore bathymetry data obtained through various public databases.